/*
 * Copyright 2004 original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jbfilter.impl;

import org.hibernate.criterion.Criterion;
import org.jbfilter.core.fcomps.single.CompareFilterComponent;

class _CompareFilterComponentHibernateSupport<E, T, C extends CompareFilterComponent<E, T>>
	extends
		_SingleFilterComponentHibernateSupport<E, T, C> {

	_CompareFilterComponentHibernateSupport(C filterComponent) {
		super(filterComponent);
	}
	
	@Override
	protected Criterion getNullTestingCriterion(T value) {
		// null testing implies '=' '<=' or '>='
		if (_FilterComponentImplUtils.containsEqualCase(getFilterComponent())) {
			return super.getNullTestingCriterion(value);
		} else {
			return null;
		}
	}

	@Override
	protected Criterion buildCriterionCallBackFromSFCSupport(String propertyPath, T value) {
		return _JbfilterComparatorKeywordHibernate
		.fromJbfilterComparatorKeyword(getFilterComponent().getComparatorKeyword())
		.findCriterion(propertyPath, value);

	}


}
